જો $\sec x = \frac{25}{24}$ અને $x$ પ્રથમ ચરણમાં હોય,તો $\sin \frac{x}{2} + \cos \frac{x}{2} =$

  • A
    $\frac{6}{5 \sqrt{2}}$
  • B
    $\frac{8}{5 \sqrt{2}}$
  • C
    $\frac{7}{5 \sqrt{2}}$
  • D
    $\frac{1}{5 \sqrt{2}}$

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$\sqrt{2} + \sqrt{3} + \sqrt{4} + \sqrt{6}$ ની કિંમત શોધો.

$\frac{1}{\tan 3A - \tan A} - \frac{1}{\cot 3A - \cot A} = $

$\cot 7\frac{1}{2}^{\circ} + \tan 67\frac{1}{2}^{\circ} - \cot 67\frac{1}{2}^{\circ} - \tan 7\frac{1}{2}^{\circ}$ ની કિંમત છે:

જો $\cos^3 \theta + \cos^3 \left(\frac{2 \pi}{3} + \theta\right) + \cos^3 \left(\frac{4 \pi}{3} + \theta\right) = \alpha \cos 3 \theta$ હોય,તો $\alpha$ ની કિંમત શોધો.

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